/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package friendManager;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.*;
import java.util.ArrayList;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.swing.JOptionPane;
import loginRegister.LoginBean;

/**
 *
 * @author DELL
 */
public class UpdateFriendMessageServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {
            /* TODO output your page here. You may use following sample code. */
            out.println("<!DOCTYPE html>");
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet UpdateFriendMessageServlet</title>");            
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet UpdateFriendMessageServlet at " + request.getContextPath() + "</h1>");
            out.println("</body>");
            out.println("</html>");
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    
    
        public void wrong1() {
        String msg = "不允许有空，修改失败！";
        String title = "信息提示";
        int type = JOptionPane.YES_NO_CANCEL_OPTION;
        JOptionPane.showMessageDialog(null, msg, title, type);

    }



    public void right() {
        String msg = "修改成功！";
        String title = "信息提示";
        int type = JOptionPane.YES_NO_CANCEL_OPTION;
        JOptionPane.showMessageDialog(null, msg, title, type);

    }
    
    
    
    
    
    
    
    
    
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
       
          

        String phone = new String(request.getParameter("phone").getBytes("ISO-8859-1"), "UTF-8");
        String email = new String(request.getParameter("email").getBytes("ISO-8859-1"), "UTF-8");

        String addr = new String(request.getParameter("addr").getBytes("ISO-8859-1"), "UTF-8");
        String qq = new String(request.getParameter("qq").getBytes("ISO-8859-1"), "UTF-8");

        if (phone.length() == 0 || email.length() == 0 || addr.length() == 0 || qq.length() == 0) {
            wrong1();

            response.sendRedirect("http://localhost:8081/PersonInforMSys/friendManager/updateFriendMessage.jsp");
        } else {

            try {

                Connection con = null;
                java.sql.Statement stmt = null;
                ResultSet rs = null;

                Class.forName("com.mysql.jdbc.Driver");

                String url = "jdbc:mysql://localhost:3306/person?useUnicode=true&characterEncoding=gbk";

                con = DriverManager.getConnection(url, "skyline", "739349");

                stmt = con.createStatement();

                String userName = null;
                  String name = null;
                HttpSession session = request.getSession();
                 ArrayList login = (ArrayList) session.getAttribute("login");
                if (login == null || login.size() == 0) {
                    response.sendRedirect("http://localhost:8081/PersonInforMSys/login.jsp");
                } else {
                    for (int i = login.size() - 1; i >= 0; i--) {

                        LoginBean nn = (LoginBean) login.get(i);
                        userName = nn.getUserName();
                       
                    }
                }
                ArrayList friendsList = (ArrayList) session.getAttribute("friendsList3");
                if (friendsList == null || friendsList.size() == 0) {
                    response.sendRedirect("http://localhost:8081/PersonInforMSys/main/bottom.jsp");
                } else {
                    for (int i = friendsList.size() - 1; i >= 0; i--) {

                        UpdateFriendBean nn = (UpdateFriendBean) friendsList.get(i);
                        name = nn.getName();
                        log(name);
                    }
                }
                
                    String sql = "update  friends   set phone='" + phone + "',email='" + email + "',addr='" + addr + "',qq='" + qq + "' where userName='" + userName + "' and name='" + name + "'";

                    try {
                    stmt.executeUpdate(sql);
                } catch (Exception e) {
                        log("Error:", e);
                }
 
         
                String sql2= "select * from friends where userName='" + userName + "'";

                rs = stmt.executeQuery(sql2);
  
       
                    ArrayList friendsList2= null;
                    friendsList2 = new ArrayList();


                    while (rs.next()) {

                        LookFriendBean friendBean = new LookFriendBean();
                        friendBean.setName(rs.getString("name"));
                        friendBean.setPhone(rs.getString("phone"));
                        friendBean.setEmail(rs.getString("email"));
                        friendBean.setAddr(rs.getString("addr"));
                        friendBean.setQq(rs.getString("qq"));
                        friendsList2.add(friendBean);
        

                    }
                session.setAttribute("friendsList", friendsList2);
                    rs.close();;
                    stmt.close();
                    con.close();
                    
            right();
            response.sendRedirect("http://localhost:8081/PersonInforMSys/LookFriendServlet");
           

            } catch (SQLException ex) {
                Logger.getLogger(AddFriendServlet.class.getName()).log(Level.SEVERE, null, ex);
            } catch (Exception e) {
            }


        }
        
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
       
        doGet(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
